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0. W. GROSOHE.

STEM WINDING WATCH.

No. 252,761. Patented Jan. 24.1882.

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CHARLES \V. GROSUHE, OF NEW YORK, N. Y.

STEM-WlNDlNG WATCH.

SPECIFICATION forming part of Letters Patent No. 252,761, dated January 24, 1882.

Application filed August 23, 1881.

To all whom it may concern:

Be it known that I, CHARLES WILHELM GROSOHE, of the city and county of New York, in the State of New York, have invented certain new and useful Improvements in Stem Winding Watches, of which the following is a specification.

The object of my invention is to simplify the winding and setting mechanism of stenrwinding watches.

The invention consists in the combination, in a watch, with the minute-wheel, the wheel upon the barrel-arbor, and the first windingwheel or stem-wheel, of a second windingwheel, a lever or plate to which said second winding-wheel is pivoted, and by moving which said wheel may be moved into engagement with theininute-wheelorthebarrel-arbor wheel, and a locking-lever adapted to engage with a stationary catch for holding said lever or plate in either position to which it may be adjusted.

The invention also consists in the combination, with said lever carrying the second wheel and the said locking-lever, of a spring so applied as to cause the engagement of the locking-lever with its catch and to move the said wheel-carrying lever to bring the second winding-wheel into engagement with the wheel on the barrel arbor.

The invention also consists in a novel construct-ion of the bearing for the first windingwheel or stem-wheel, as hereinafter fully described.

In the accompanying drawings,Figure 1 represents a view of the dial-plate of a watchmovement, including such parts only as are necessary to illustrate my invention, the parts being adjusted for winding. Fig. 2 represents a similar view with the parts adjusted for setting. Fig. 3 represents a perspective view of the second winding-wheel, its carrying-lever, and the locking-lever. Fig. 4 represents a similar view of the wheel-carrying lever alone, and Fig. 5 represents a sectional view ofa portion of the dial-plate and back plate and a hearing for the first winding-wheel or stem-wheel.

The drawings are made upon an enlarged scale for sake of clearness, and similar letters of reference designate corresponding parts in all the figures.

A B designate respectively the dial-plate and (N0 model.)

back plate of a watch-movement, which are secured together or in proper relation to each other by screws, in the usual way.

' O designates the cannon-pinion, and I) the minute-wheel of the dial-wo k, through which the setting of the watch is effected.

E designates a wheel upon the barrelarbor a, through which the winding of the watch is effected.

F designates the first winding-wheel or stemwheel, which is a crown-wheel, the stem or spindle of which is supported in a hearing which fits between said wheel and a fixed collar, Z), adjacent thereto. This bearing is best shown in Fig. 5, and is formed partly in the dial-plate and partly in a block, 0, which is tittedand clamped between the dial and back plates, A B, and held in proper position by steadypins 0. When the hearing is thus formed it will be seen that the block 0 is secured in place by the same screws which secure the plates together, and separate screws for the purpose are dispensed with.

G designates the stem, which fits upon the square stem or spindle of the first windingwheel, F.

H designates the second winding-whrel, and I designates a plate-like lever, fulcrumed at d and carrying said wheel, which is pivoted thereto by a screw, 0. The pin (1, whereby the lever I is fulcrumed, passes through the dialplate A, and is secured by a slotted washer,f, which fits into notchesf in the pin, as best seen in Figs.3 and 4. The wheel H is in constant engagement with the crown-wheel F, and by swinging the lever I slightly upon its fulcrum (I the said wheel H is made to engage with the wheel E upon the barrel-arbor a, as seen in Fig. 1, for winding, or with the minute-wheel D, as seen in Fig. 2, for setting.

J designates a locking-lever, which is pivoted at g to the wheel-carrying lover I, and works through a slot, h, in the dial-plate A, and also through the case, to enable it to be reached. The locking-lever has in its edge notches t, which engage with a tooth or catch, j, in the back plate, ]3,or other part of the movement, for holding the leverI in either position to which it may be adjusted, and said lever has an arm, 7a, which is pressed upon by a spring, Z, for holding the notched loclting'lever in engagementwith said tooth or catch. When the lever I is in the position shown in Fig. 2, if the locking-lever J be drawn back out of engagement with the tooth or catch j, the spring lwill move the lever I inward to bring the wheel H into engagement with the wheel E for winding, the smooth edge of the locking lever J between the notches i passing freely over the tooth j.

By myinvention I greatly simplify the construction of stem-winding watches, and thereby lessen their cost and their liability to get out of order.

It will be seen that the lever I is of broad plate-like form, and in lieu of it a lever or plate of other form operating in alike manner might be used.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with the minute-wheel, the barrel-arbor wheel, the first winding-wheel, the second winding-wheel, and its carryinglever, of the locking-lever adapted to engage with a stationary catch for holding the wheelcarrying lever in either position to which it may be adjusted, substantially as and for the purpose specified.

on the barrel-arbor, substantially as specified. 35

3. The combination, with lever I, of the locking-lever J, pivoted to said lever, adapted to engage with a stationary catch, and having an arm, 70, and the spring 1 bearing on said arm, substantially as and for the purpose specified.

4. The combination, in a watch, with the dial-plate, the back plate, and the first winding-wheel or stem-wheel, ot' a block fitting and clamped between said plates, steadypins for holding it against lateral movement, and a bearing for said wheel, formed partly in said dial plate and partly in said block, substantially as and for the purpose specified.

C. W. GROSUHE.

Witnesses:

FREDK. HAYNES, CHANDLER HALL. 

